GB1099214A - Time delay computer element - Google Patents

Time delay computer element

Info

Publication number
GB1099214A
GB1099214A GB21337/66A GB2133766A GB1099214A GB 1099214 A GB1099214 A GB 1099214A GB 21337/66 A GB21337/66 A GB 21337/66A GB 2133766 A GB2133766 A GB 2133766A GB 1099214 A GB1099214 A GB 1099214A
Authority
GB
United Kingdom
Prior art keywords
extinguish
switch
time delay
capacitor
pulse
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB21337/66A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1099214A publication Critical patent/GB1099214A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • H03K17/722—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region with galvanic isolation between the control circuit and the output circuit
    • H03K17/723—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region with galvanic isolation between the control circuit and the output circuit using transformer coupling
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/35—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar semiconductor devices with more than two PN junctions, or more than three electrodes, or more than one electrode connected to the same conductivity region
    • H03K3/352—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar semiconductor devices with more than two PN junctions, or more than three electrodes, or more than one electrode connected to the same conductivity region the devices being thyristors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electronic Switches (AREA)

Abstract

1,099,214. Transistor delay switching circuits. WESTINGHOUSE ELECTRIC CORPORATION. May 13, 1966 [May 20, 1965], No. 21337/66. Heading H3T. A time delay circuit comprises at least three semi-conductor switching devices S1, S2, S3 a first state of an input signal turning on device S2; means having a time delay initiated by the turning on of S2 to turn on S3 and produces an output signal at terminal 10; means to turn on device S1 when the input signal has a second state; and means C1, C2, C3 for ensuring that only one semi-conductor switching device is turned on at a time. Assume initially that S1 is turned on, then closing switch 14 will produce a pulse in W3 to fire S2 and commutating capacitor C1 will extinguish S1. Capacitor C4 will commence to charge, and after a delay, determined by the setting of R2, diode D will break down to fire S3 and produce an output at 10. Capacitor C2 will extinguish S2. When switch 14 opens, the resulting pulse in winding W2 will refire S1 and C3 will extinguish S3. In a modification, Fig. 2 (not shown) the firing pulse for S1 is provided by making switch 14 a changeover switch which connects a positive supply to winding W1, shorting resistor R 0 .
GB21337/66A 1965-05-20 1966-05-13 Time delay computer element Expired GB1099214A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US457412A US3348070A (en) 1965-05-20 1965-05-20 Time delay computer element for indicating input conditions

Publications (1)

Publication Number Publication Date
GB1099214A true GB1099214A (en) 1968-01-17

Family

ID=23816628

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21337/66A Expired GB1099214A (en) 1965-05-20 1966-05-13 Time delay computer element

Country Status (5)

Country Link
US (1) US3348070A (en)
JP (1) JPS4211176B1 (en)
BE (1) BE681354A (en)
FR (1) FR1482282A (en)
GB (1) GB1099214A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1334131A (en) * 1971-05-17 1973-10-17 Smiths Ind Divider circuits

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2892101A (en) * 1956-04-25 1959-06-23 Westinghouse Electric Corp Transistor time delay circuit
US2924724A (en) * 1957-04-24 1960-02-09 Westinghouse Electric Corp Time delay circuits
US3143665A (en) * 1961-04-17 1964-08-04 Rotax Ltd Silicon control rectifier switching circuit having variable delay
US3167664A (en) * 1962-11-29 1965-01-26 Leonard J Stascavage Flip-flop using silicon controlled rectifiers
US3230394A (en) * 1963-06-18 1966-01-18 Cutler Hammer Inc Pulse generating circuit insensitive to input control switch contact bounce

Also Published As

Publication number Publication date
US3348070A (en) 1967-10-17
JPS4211176B1 (en) 1967-06-22
FR1482282A (en) 1967-05-26
BE681354A (en) 1966-10-31

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